/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.cassandra.db; import com.google.common.base.Objects; import org.apache.cassandra.cache.IMeasurableMemory; import org.apache.cassandra.utils.ObjectSizes; public class ClockAndCount implements IMeasurableMemory { private static final long EMPTY_SIZE = ObjectSizes.measure(new ClockAndCount(0, 0)); public static ClockAndCount BLANK = ClockAndCount.create(0L, 0L); public final long clock; public final long count; private ClockAndCount(long clock, long count) { this.clock = clock; this.count = count; } public static ClockAndCount create(long clock, long count) { return new ClockAndCount(clock, count); } public long unsharedHeapSize() { return EMPTY_SIZE; } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof ClockAndCount)) return false; ClockAndCount other = (ClockAndCount) o; return clock == other.clock && count == other.count; } @Override public int hashCode() { return Objects.hashCode(clock, count); } @Override public String toString() { return String.format("ClockAndCount(%s,%s)", clock, count); } }